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Turnable Rack Vibration

Hi,
I recently moved my Audio equipment to a VTI rack system. As part of the change by Linn LP12 moved from a Target wall shelf to the top shelf of the VTI.
The move has made the turntable far more susceptible to floor and foot fall vibrations... disappointingly and annoying so.
I would like some recommendations on effective vibration isolation for the turntable chassis. I have a 1/2" slab of granite that i am thinking of placing the turntable on and separating the granite from the top shelf of the rack with a series of isolators.
Has anyone had experience with this setup and what isolators would they recommend?
Of course i am also open to any other suggestions on how to best isolate the top shelf for the rest of the components.

Thanks
Neil
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Showing 1 response by halcro

halcro's avatar
halcro
2,664 posts
 
Nsgarch has been right in everything he has suggested.

The constrained-layer-damping is a nice touch and will certainly avoid any possible feedback problems into the shelf itself, but once you have your turntable on spikes, on a properly executed wall-hung shelf, 95% of all Structure-Bourne feedback (the real killer in audio) will be eliminated.
It helps to have metal supports from the wall and timber or timber/combination for your damped shelving.

Air-Bourne feedback is resolved in the design of the turntable/arm/cartridge themselves and will rarely be a problem if SBF is eliminated.
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